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Made up of two atoms.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Chemistry) (of a compound or molecule)
a. containing two atoms
b. containing two characteristic groups or atoms: ethylene glycol is a diatomic alcohol.
diatomicity n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌdaɪ əˈtɒm ɪk)

1. having two atoms in the molecule.
2. containing two replaceable atoms or groups; binary.
di`at•o•mic′i•ty (-æt əˈmɪs ɪ ti) n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.diatomic - of or relating to a molecule made up of two atoms; "a diatomic molecule"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Also, pollen and diatomic samples, and biomarkers apart from the found fauna related to the cranium, 'gave us an approximate idea of how plants and the environment were', says the UB geologist.
The analyses revealed that the diatomic particles are present in a clay-bearing environment and these particles are circular and platelets with a size range of 0.005-0.025 mm.
For a system of diatomic gas molecules, the wall molecules still pass the same mean kinetic energy onto the diatomic gas molecule's center of mass with each collision.
The dissolved diatomic mercury ions, Hg(II), are the common form in aqueous solution.
Mayer, "Physical analysis of the diatomic "chemical" energy components," Theoretical Chemistry Accounts, vol.
reported that nanoporous Au were significantly coarsening in both air and chemically active diatomic gas ([N.sub.2] and [O.sub.2]), but not in vacuum and inert monoatomic gas (Ar) [30].
Since diatomic molecules exhibit very long decoherence times, the molecular electronic states (electronic, vibrational, and/or rotational) are chosen recently to act as the quantum bits (qubits).
Seydou, "Balance between physical and chemical interactions of second-row diatomic molecules with graphene sheet," Superlattices and Microstructures, vol.
Berkdemir [10] had shown that either Coulomb or harmonic oscillator will give a better approximation for understanding the spectroscopy and structure of diatomic molecules in the ground electronic state.